9 results about "S-methylcysteine" patented technology

Disclosed is a personal care composition comprising: (a) carboxymethyl cysteine compound and (b) C6-C12-dicarboxylic acid amide and / or salt thereof.

Disclosed is a personal care composition comprising carboxymethyl cysteine compound and acetyl methionine compound, wherein the molar ratio of the carboxymethyl cysteine compound to the acetyl methionine compound is 1:1.6 to 2:1.

A personal care composition comprising a carboxymethyl cysteine compound and a vitamin C compound wherein the molar ratio of carboxymethyl cysteine compound to vitamin C compound is at least 14: 1, and the composition comprises 10 to 96% by weight of water.

The application provides a copper plating solution and a stabilizer, which comprises copper sulfate pentahydrate, a complexing agent, formaldehyde, ethanolamine, 2,2-bipyridine, S-adenosyl-L-homocysteine, S-carboxymethyl-L-cysteine and thiomalic acid. The S-adenosyl-L-homocysteine and the S-carboxymethyl-L-cysteine can improve the tolerance of the plating solution to leached palladium. After a certain amount of thiomalic acid is added, the three components have a good synergistic effect. The plating solution maintains high activity and further improves the tolerance to leached palladium, which is beneficial to improve the service life of the plating solution and prolong the decomposition time of the plating solution. Even under high leached palladium concentration, the thick copper solution does not affect the plating activity and the uniform plating capacity of the chemical copper plating solution. Under normal production load, a deposition rate of 1.0 um / 20 min can be obtained. The solution has good stability. Under extreme conditions of high leached palladium, the decomposition time of the plating solution is prolonged by 2-6 hours.

The present application relates to the field of immunochromatography, and particularly relates to an immunochromatographic detection kit for detecting viscous samples. The present application provides a sample pad treatment liquid, characterized in that the sample pad treatment liquid comprises at least the following components: S-carboxymethyl-L-cysteine, a buffer, a surfactant, and a blocking agent. The sample pad treatment liquid of the present application can enhance the anti-interference ability of the immunochromatographic detection kit for different viscous samples and prolong the actual effective period thereof with relatively simple components, and long-term guarantee that the detection performance and color development quality of the immunochromatographic detection kit prepared based thereon remain at a very high level.

Disclosed is a personal care composition comprising carboxymethyl cysteine compound and a source of Atractylenolide.

Disclosed is a personal care composition comprising carboxymethyl cysteine compound and unsubstituted fatty acid, wherein the molar ratio of the carboxymethyl cysteine compound to the unsubstituted fatty acid is at least 2.5:1.

The application discloses a preparation method and application of S-adenosyl-methyl cysteine, and the preparation method comprises the following reaction: S-adenosyl-L-cysteine is methylated by using a first methyltransferase or a first methyltransferase mutant and a methyl donor to obtain S-adenosyl-methyl cysteine; or S-adenosyl-L-homocysteine is methylated by using a methyltransferase or a first methyltransferase mutant and a methyl donor to obtain S-adenosyl-methionine. The method has the characteristics of low cost and simple operation, and enables S-adenosyl-methyl cysteine to replace expensive S-adenosyl methionine (SAM) as a coenzyme and a methyl donor in a methylation reaction, and is applied to methylation modification of natural products based on a coenzyme regeneration system.

Disclosed is a personal care composition comprising carboxymethyl cysteine compound and 0.0001 to of 25% of triglyceride by weight of the composition, wherein the pH of the composition is 3.5 to 6.5.